NSV
- NSV machine gun
- Nanosievert
- National Socialist People's Welfare
- National Socialist Vanguard
- National-Social Association
- Nationalistische Studentenvereniging
- Neighbourhoods for a Sustainable Vancouver
- New Catalogue of Suspected Variable Stars
- Newton–Størmer–Verlet
- No scalpel vasectomy
- Nullsoft Streaming Video
- Nürnberger-Spielkarten-Verlag